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From: haviland@uvm-gen.UUCP (Tom Haviland)
Newsgroups: comp.sys.ibm.pc
Subject: Mixed language programs
Message-ID: <582@uvm-gen.UUCP>
Date: Thu, 24-Sep-87 10:28:04 EDT
Article-I.D.: uvm-gen.582
Posted: Thu Sep 24 10:28:04 1987
Date-Received: Sun, 27-Sep-87 09:52:39 EDT
Organization: EMBA Computer Facility, Univ. of Vermont, Burlington.
Lines: 26


  I have an interesting problem I wonder if anyone out there might have
experienced.  I'm writing a menu system to go with a fortran modelling
package, and since supposedly microsoft C and FORTRAN work together, I
wrote the menu system in C.  I've set up an INTERFACE block in the fortran
program to call the C routines, and it seems to call the routine ok, but
when the C routine calls the fscanf() function, reading floating point
numbers from a file (%f) I get an error "Floating point not loaded" and
the program stops.  Now the C routines do some floating point calculations
before this point and that works ok.  Also, fscanf() works ok reading
integers.  I'm doing this on an AT&T 6300 with an 8087.  In the FORTRAN
routines the $nofloatcalls option is on (generate 8087 inline code), and
I've tried compiling the C routines with several different floating point
options (FPi, FPi87, FPc), but I still get this error.  Does anyone out
there have any idea whats going on?

Thanks for any help
                                Tom


-- 
	 					Thomas P. Haviland
USENET:	decvax!dartvax!uvm-gen!haviland 	University of Vermont
CSNET:	haviland%uvm@csnet-relay		(802) 656-2540
              
               "Knowledge is no substitute for retractability"